[Suehiro Jun's first hemp rope bondage SM film!!] I knew from the beginning the secret between this man and his mother. Jun, a young girl whose mother died in an accident six months ago, lives with her stepfather, who was her mother's second husband. The shock of the accident caused her stepfather to become mentally ill and lose his job. Unable to leave her stepfather alone, Jun takes a leave of absence from school to continue caring for him, but Jun, knowing his "secret," finds it difficult to open up to him... Bondage with hemp rope, torture with candles, toy training, creampies... As the desire directed at her in place of her mother is directed at her, the young girl's hatred gradually sinks into a state of resignation... Suehiro Jun's first attempt at full-scale SM bondage leads to an unexpected urination and climax!